Assembly

In order to protect the laser from accidental splashes or spills a splash guard was placed between the laser and the optics chamber.  The white splash guard and base were made from Corian counter top material.  Though somewhat unorthodox, this plastic is very dense and therefore stable.  It also is machineable, bondable, and non-corrosive.  Small quantities are usually obtainable from a local cabinet shop, sold as sink cutouts.  A photograph of the assembled machine is shown below.  The yellow arrow represents the direction of embryo and fluid flow.
 

Assembled Embryo Sorter

The embryo chambers and magnetic stirrer are located to the front to allow easy access to the user.  Note that the PMT’s are located at the back of the optics chamber, to the rear of the assembly, which protects them from accidental knocks that could disrupt their alignment.